Abstract
There are various surveying techniques used in the field of cultural heritage documentation. Close Range Photogrammetry (CRP) and Terrestrial Laser Scanning (TLS) techniques have been widely used in 3D modeling applications. Various research studies integrate these techniques to enhance the quality of the data acquired. The main objective of this research is to assess the accuracy of TLS and CRP. The two methods are applied to two culture heritage case studies, which are located in the historic district in Jeddah, Saudi Arabia. The data obtained from both techniques is compared with data captured using traditional surveying techniques as reference data. The results show that TLS tends to be more accurate than CRP. In the first case study (Bab Makkah), CRP and TLS produced 0.044 m and 0.008 m overall RMS error, respectively; while CRP produced 0.025 m and TLS produced 0.021 m in the second case study (Bab Sharif).
Highlights
Cultural heritage buildings play an important role in reflecting a country’s identity.Recently, governments have directed their attention towards protecting cultural heritage buildings from war, natural disasters, and general wear and tear
2.1.Introduction This chapter reviews the principles of Close Range Photogrammetry (CRP), Terrestrial Laser Scanning (TLS), and traditional surveying techniques, as well as discusses previous uses of CRP and TLS
The CRP images were matched using 164 natural control points located on different parts of the gate, such as wood edges and dots marking on the building materials
Summary
1.1.Introduction Cultural heritage buildings play an important role in reflecting a country’s identity. In addition to individual countries, international organizations, such as the United Nations Organization of Education, Science and Culture (UNESCO), and its World Heritage Centre, are interested in documenting and preserving historical sites. Two historic sites (Bab Makkah and Bab Sharif) in Saudi Arabia are surveyed and documented using digital photogrammetry and terrestrial laser scanning techniques. Due to their historical significance, availability of equipment and the uniqueness of structure, both gates remain in their original position, which is situated in the middle of street intersections. These gates serve a purpose in the Islamic tradition, in that they have outstanding geometrical details, which reflect the city’s identity
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